Parts for your 2004 Toyota Land cruiser-Spark plugs

2004 Toyota Land Cruiser spark plugs: what they do and when to replace them

Technical sources including the Toyota 100 Series Repair Manual, the 2004 Owner’s Manuals for UZJ100/HDJ100/HZJ105, and Denso/NGK ignition catalogues make it clear: a 2004 Toyota Land Cruiser uses spark plugs only on its petrol engines (such as the 4.7‑litre 2UZ‑FE V8 and, where sold, the 1FZ‑FE 4.5‑litre six). Diesel variants (1HZ and 1HD‑FTE) don’t use spark plugs at all